Could Ron DeSantis stop Trump’s arrest?
Actually, no. See Article IV, Section 2, Clause 2 of the US Constitution:
A Person charged in any State with Treason, Felony, or other Crime, who shall flee from Justice, and be found in another State, shall on Demand of the executive Authority of the State from which he fled, be delivered up, to be removed to the State having Jurisdiction of the Crime.
Now please inform us as to when Trump “fled” from NY to avoid Justice. He moved to Florida in 2021.